Veteran: Ms Butler's fellow officers paid tribute to her decade of service and popularity in the force

Fun: Ms Butler pictured decorating a Christmas tree with her children

Happier times: The officer and her fellow policemen were the first two ever killed in Santa Cruz

Panic also followed as police went door
to door searching homes in case another suspect remained at large'.

Two schools were also locked down during the incident and students were later evacuated by bus to the County Government Center.

One store clerk in the neighborhood said the entire day had been 'terrifying'.

'We ducked. We have big desks so under the desks we went,' she said.

In
the line of duty: Two officers were shot dead in Santa Cruz yesterday
in the investigation of a sexual assault. It is believed the two
officers were shot dead by the suspect later killed by fellow officers,
pictured

Lock-down:
A huge operation was launched to catch the suspect in downtown Santa
Cruz yesterday with the community warned to stay indoors and two schools
put on lock-down

In mourning: Officers were left shocked on learning two of their colleagues had been shot dead in the incident, pictured. The pair are the first officers to be killed while on duty in the California city

Residential: The shootings all took place in a residential area in downtown Santa Cruz in the middle of the afternoon yesterday

Another resident, Charlie May, added: 'I went out to take a look, and they shooed us all back'.

While the investigation was going on police issued an alert for Goulet, a barista, who had been arrested on suspicion of disorderly conduct on Friday.

A
rally had been scheduled for community leaders to speak out against the
shootings yesterday but was canceled given the three fatalities.

Shoot-out: The suspect was killed in police gunfire on Doyle Street, pictured

Operation: Scores of police officers and FBI agents were called in to investigate and capture the suspect who killed two officers

Recent violent attacks include the killing of Pauly Silva, a 32-year-old martial arts instructor who was shot outside a popular bar and restaurant in downtown Santa Cruz on February 9.

Two days later, a UC Santa Cruz student waiting at a bus stop was shot in the head during a robbery.

Then on February 17, a 21-year-old woman was raped and beaten on the UC Santa Cruz campus. Four days later, a Santa Cruz couple fought off two men who came in their home before dawn and threatened them with a sword.